Currently abortions in NSW are dealt with under the Crimes Act 1900, but the introduction of a private members bill into parliament may decriminalise the act.

"I'm certainly not pro-abortion, I've got five kids of my own, [but] I also respect the rights of a woman to be able to make a decision on that without committing a criminal offence," Mr Donato said.

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"They should have that option over their body."

Mr Donato said many people in the community did not know that abortion was "technically illegal".

The MP said he has some concerns about the bill's details, including allowing terminations up to 22 weeks. He said the maximum should be 20 weeks unless there was "exceptional circumstances" such as fetal abnormality, medical conditions or the mother's life was at risk.

The bill does include safeguards for allowing terminations after that time and Mr Donato said he was currently comparing these to legislation in other states.

In the lead up to MPs' conscience vote on the issue, Mr Donato said he remained undecided.

"My office has been inundated with emails from both sides of the argument," he said.

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Earlier this week, Dubbo MP Dugald Saunders said this bill was not about encouraging abortion, rather it was "supporting women who, for any one of a number of reasons, may choose to make that decision".

"I believe it is important that a government and its legislation reflects modern society, and I think in 2019 the community sentiment is that a woman shouldn't be made to feel like a criminal for terminating a pregnancy," he said.

Bathurst MP Paul Toole called NSW's currently abortion laws "outdated", but he said he would not confirm whether he would vote in favour of decriminalising pregnancy terminations.

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"It's important that we are protecting those who are making a difficult decision," he said.

"I'm keen to get all the information that's being provided, the bill was only introduced yesterday [Tuesday] afternoon, it's quite lengthy so I'm still going through the detail and actually interpreting what it all means and talking to different people about what it means."

While, Catholic Diocese of Bathurst Bishop Michael McKenna said the bill was being pushed through without adequate consideration of the consequences.

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"As so often in this debate, someone is forgotten. That is the human being: unborn, but human, who has no rights when her or his life or death is being decided," he said.

"Also forgotten are those medical professionals who would conscientiously oppose such procedures, from whom the law could withdraw protection.

"And thoroughly forgotten are the mothers faced with difficult circumstances in their pregnancies, for whom, instead of genuine care, only the bleak option of a termination is offered."